Computational electromagnetics

Computational electromagnetics is like using a computer to help us understand how things like TV, radios and cell phones work. When we look at things like radios, they send signals that go through the air. Computational electromagnetics helps us to work out things like what happens when the signal meets something like a wall, so that people can still hear the radio station. It also helps us to make sure that cell phone signals stay strong and won't disappear. So basically, computational electromagnetics helps us to know how to make things like radios and cell phones work better.